:root[data-theme="forest"] {
  --ui-bg:#f5f6f4; --ui-surface:#ffffff; --ui-soft:#f1f5f1; --ui-line:#e1e8e2;
  --ui-text:#202e28; --ui-ink:#283f32; --ui-muted:#718278; --ui-subtle:#9baa9d;
  --ui-primary:#23483e; --ui-primary-strong:#17372e; --ui-primary-soft:#e9f1ec; --ui-accent:#789c81;
  --ui-nav:#172b23; --ui-nav-text:#bbcbc0; --ui-nav-muted:#75907e; --ui-nav-active:#294c3b;
  --ui-success:#397a58; --ui-success-soft:#edf6f0; --ui-danger:#af5b64; --ui-danger-soft:#faf0f2;
  --ui-warning:#9b7538; --ui-warning-soft:#faf5e9; --ui-shadow:0 12px 38px #162d2010;
}
:root, :root[data-theme="blue"] {
  --ui-bg:#f2f6fb; --ui-surface:#ffffff; --ui-soft:#f4f8fd; --ui-line:#dfe8f2;
  --ui-text:#23354d; --ui-ink:#314e72; --ui-muted:#74869f; --ui-subtle:#9eafc4;
  --ui-primary:#286eac; --ui-primary-strong:#1b558c; --ui-primary-soft:#eaf3fd; --ui-accent:#4c94d4;
  --ui-nav:#ffffff; --ui-nav-text:#627a99; --ui-nav-muted:#a0aec1; --ui-nav-active:#eaf3ff;
  --ui-shadow:0 12px 38px #2142690c;
  --ui-success:#397a58; --ui-success-soft:#edf6f0; --ui-danger:#af5b64; --ui-danger-soft:#faf0f2;
  --ui-warning:#9b7538; --ui-warning-soft:#faf5e9;
}